1741 search results for "regression"

R-Squared for a VBGM

August 9, 2013
By
R-Squared for a VBGM

Recently, a fishR user asked me the following question: After fitting the age-length data into VBGM, I overviewed the results. But I can’t find the coefficient of determination () for the VBGM fitting. Because some reviewer want the the coefficient … Continue reading →

Read more »

Classifieur Naïf Bayésien

August 5, 2013
By

IntroductionLe classifieur naïf bayésien est l'une des méthodes les plus simples en apprentissage supervisé basée sur le théorème de Bayes. il est peu utilisé par les praticiens du data mining au détriment des méthodes traditionnelles que sont les arbres de décision ou les régressions logistiques.Un avantage de cette méthode est la simplicité de programmation, la facilité d'estimation des paramètres...

Read more »

Measuring Bias in Published Work

July 31, 2013
By
Measuring Bias in Published Work

In a series of previous posts, I’ve spent some time looking at the idea that the review and publication process in political science—and specifically, the requirement that a result must be statistically significant in order to be scientifically notable or publishable—produces a very misleading scientific literature. In short, published studies of some relationship will tend

Read more »

Measuring Bias in Published Work

July 31, 2013
By
Measuring Bias in Published Work

In a series of previous posts, I’ve spent some time looking at the idea that the review and publication process in political science—and specifically, the requirement that a result must be statistically significant in order to be scientifically notable or publishable—produces a very misleading scientific literature. In short, published studies of some relationship will tend

Read more »

Crowdfunding the Ubuntu Edge will fail

July 30, 2013
By
Crowdfunding the Ubuntu Edge will fail

Tuesday 30 July 2013 - 14:14 Although the Ubuntu Edge has been record-breaking in its crowdfunding efforts, the fundraising campaign will fall well short of its 32 million dollar target. Just to be clear, I hope to be proven wrong! I backed the Ubuntu Edge Indiegogo fundraiser at the $625 level...

Read more »

A JAGS calculation on pattern of rain January 1906-1915 against 2003-2012

July 28, 2013
By

Two weeks ago I showed rain data from six stations in Netherlands years 1906 till now. Last week I showed that frequency of days with and without rain differed between December 1906-1915 and December 2003-2012. This week I am considering the ...

Read more »

Electricity Usage in a High-rise Condo Complex pt 4

July 24, 2013
By
Electricity Usage in a High-rise Condo Complex pt 4

This is the fourth article in the series, where the techiness builds to a crescendo. If this is too statistical/programming geeky for you, the next posting will return to a more investigative and analytical flavor. Last time, we looked at … Continue reading →

Read more »

R Credit Scoring – WoE & Information Value in woe Package

July 23, 2013
By
R Credit Scoring – WoE & Information Value in woe Package

In credit scoring, Information Value (IV) is frequently used to compare predictive power among variables. When developing new scorecards using logistic regression, variables are often binned and recoded using WoE concept. Package riv will help you to a...

Read more »

Using survival models for marketing attribution

July 23, 2013
By

by Andrie de Vries Prior to joining Revolution Analytics in March this year, I spent several years in the field of market research and survey analytics. During this period, I spent a few months consulting to a digital marketing agency based in London. My role was to help build their capability in building customer surveys and integrating these into...

Read more »

Hierarchical Linear Model

July 22, 2013
By
Hierarchical Linear Model

Linear regression probably is the most familiar technique of data analysis, but its application is often hamstrung by model assumptions. For instance, if the data has a hierarchical structure, quite often the assumptions of linear regression are feas...

Read more »